0.7x-0.9y=8.1

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Solution for 0.7x-0.9y=8.1 equation: 


Simplifying
0.7x + -0.9y = 8.1

Solving
0.7x + -0.9y = 8.1

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '0.9y' to each side of the equation.
0.7x + -0.9y + 0.9y = 8.1 + 0.9y

Combine like terms: -0.9y + 0.9y = 0.0
0.7x + 0.0 = 8.1 + 0.9y
0.7x = 8.1 + 0.9y

Divide each side by '0.7'.
x = 11.57142857 + 1.285714286y

Simplifying
x = 11.57142857 + 1.285714286y

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